74LVX3245M(1999) 데이터 시트보기 (PDF) - STMicroelectronics

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74LVX3245M
(Rev.:1999)

OCTAL DUAL SUPPLY BUS TRANSCEIVER

STMicroelectronics 

®

74LVX3245

OCTAL DUAL SUPPLY BUS TRANSCEIVER

s HIGH SPEED: tPD = 6 ns (TYP.) at VCC = 3.3V

s LOW POWER DISSIPATION:

ICC = 8 µA (MAX.) at TA = 25 oC

s LOW NOISE: VOLP = 0.3V (TYP.) at VCC = 3.3V

s SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 4 mA (MIN)

s BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

s OPERATING VOLTAGE RANGE:

VCCA (OPR) =2.7V to 3.6V (1.2V Data Retention)

s VCCB (OPR) =4.5V to 5.5V (1.2V Data Retention)

s PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 3245

s IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The LVX3245 is a dual supply low voltage CMOS

OCTAL BUS TRANSCEIVER fabricated with

sub-micron silicon gate and double-layer metal

wiring C2MOS technology. Designed for use as

an interface between a 5V bus and a 3.3V bus in

mixed 5V/3.3V supply sistems, it achieves high

speed operation while maintaining the CMOS low

PRELIMINARY DATA

M

(Micro Package)

T

(TSSOP Package)

ORDER CODES :

74LVX324 5M

74LVX3245T

power dissipation.

This IC is intended for two-way asynchronous

communication between data buses; the direction

of data trasmission is determined by DIR input.

The enable input G can be used to disable the

device so that the buses are effectively isolated.

The A-port interfaces with the 3V bus, the B-port

with the 5V bus.

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

PIN CONNECTION AND IEC LOGIC SYMBOLS

March 1999

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